:::“''We can not have any knowledge about the inner or outer-world''”. Or in Kant's methodology, we will never know the noumenon.

The only thing we can say is that we observe phenomena. We have some idea of the world as we perceive it. How this representation is constructed, we will have to suggest. This a a result of our inability to go beiond our perceptions or phenomena, I will call this principle will be called '''"The phenomenological cage principle"'''.

Philosophers had tried since Hume and Kant to describe the inner mechanisms that constructed our perception, but no final solution was achieved. So to solve this problem I will use ideas that were taken from neurophysiology, and that may comply to the philosophic literature.